This paper reports on the processing and properties of homogeneous and functionally graded material (FGM) composites with a Si3N4 matrix and TiC0.5N0.5 as secondary hard phase. The composites with submicron grain size were prepared from a stable colloidal suspension using electrophoretic deposition (EPD). The EPD processing parameters are described and the mechanical properties of the densified homogeneous and functionally graded material composites are reported and evaluated.